AdGuardHome/internal/dhcpsvc/lease.go

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package dhcpsvc
import (
"bytes"
"net"
"net/netip"
"slices"
"time"
)
// Lease is a DHCP lease.
//
// TODO(e.burkov): Consider moving it to [agh], since it also may be needed in
// [websvc].
//
// TODO(e.burkov): Add validation method.
type Lease struct {
// IP is the IP address leased to the client.
IP netip.Addr
// Expiry is the expiration time of the lease.
Expiry time.Time
// Hostname of the client.
Hostname string
// HWAddr is the physical hardware address (MAC address).
HWAddr net.HardwareAddr
// IsStatic defines if the lease is static.
IsStatic bool
}
// Clone returns a deep copy of l.
func (l *Lease) Clone() (clone *Lease) {
if l == nil {
return nil
}
return &Lease{
Expiry: l.Expiry,
Hostname: l.Hostname,
HWAddr: slices.Clone(l.HWAddr),
IP: l.IP,
IsStatic: l.IsStatic,
}
}
// compareLeaseMAC compares two [Lease]s by hardware address.
func compareLeaseMAC(a, b *Lease) (res int) {
return bytes.Compare(a.HWAddr, b.HWAddr)
}